1. Nitrogen-Phosphorous-Potassium Macro Nutrients
Fertilizer Terms
Nitrogen-Phosphorous-Potassium
Macro Nutrients

2. Incomplete Fertilizer-
Fertilizer containing only one or two of the three major nutrients
Nitrogen-
Phosphorous-
Potassium
Example:
Ammonium Nitrate

3. Granular-
Small pelleted form of dry fertilizer

4. Slow Release-
Fertilizer designed for release over an extended period, may be large pellet or prill

5. Polymer-coated Urea

6. Liquefied gas-
Gas injected under pressure into soil by long tubes ended with blades

7. Complete Fertilizer
Fertilizer containing percentages of Nitrogen, Phosphorous, and Potassium

8. Prill
Slow release fertilizer-dry fertilizer core with plastic type coating designed to activate when wet

9. Atomic Weight
Weight of an element relative to the standard weight of oxygen (16)

10. Conversion Factor-
Means of converting K2O (phosphate) and P2O5 (potash) to actual potassium and Phosphorus

11. Liquid Fertilizer-
Concentrated liquid which must be diluted before application

12. Micronutrient-
Nutrients needed in small quantities for good plant growth
Examples
Fe, Mn, B, Cu, Zn, Mo, Cl
Iron, Manganese, Boron,
Copper, Zinc, Molybdenum,
Cloride

13. Secondary Nutrients The Synthesizers
Nutrients needed in relatively large amounts
Calcium Ca
Magnesium Mg
Sulfur S

14. Macronutrient-
Nutrients needed in Large Amounts for good plant growth

15. Water Soluble-
A dry form of fertilizer used in greenhouses applied through injector systems

16. Organic Fertilizer-
Naturally-occurring fertilizer-example: bone meal

17. Inorganic Fertilizer-
Fertilizer created by a chemical process

18. pH percent Hydrogen indication of soil acidity.
Smaller pH indicates more acid lever of soil
pH of 6-7 is best